[英语]8B unit 3 grammar 2.pptVIP

Unit 3 Online travel Grammar Passive voice 1. When to use the passive voice? ★It is obvious(显然) who performs the action. ★We do not know or do not want to know who performs the action. ★We think the action is more important than the person who performs the action. 助动词be + V过去分词 2. 被动语态的构成 (by +动作发出者) 被动语态的各种人称、数和时态变化体现在助动词be 上。 Rules： 用动词的被动语态填空: English ____________(speak) by many people. This kind of computer ________(make) in China. The meeting____________ (hold)last month. The letter __________ (send)by May yesterday. The trip to the World Park ______________ (organize) by Mr. Wu. is spoken is made was held was sent was organized 6. The skirts with green and white flowers ___________ (design) by my sister. Many reserves __________ (build) in China last year. The fire ________ (put) out by the firemen. My homework _________ (check) two hours ago. Thousands of new books ___________ (print) every year in our country. are designed were built was put was checked are printed 肯定句:主+be +done 否定句:主+be +not +done 一般疑问句:Be+主+done? 特殊疑问句:特殊疑问词+be+主+ done? 把下列句子变成被动语态: 1 My brother didn’t turn on the TV last night. The TV wasn’t turned on by my brother last night. 2 Some of us don’t like English. 3 Did your parent look after you in the hospital? 4 Do they teach Japanese in the middle school? English isn’t liked by some of us. Were you looked after by your parent in the hospital? Is Japanese taught by them in the middle school? 3.基本句式 4. 主动语态变为被动语态的方法 宾变主 动词变被动 主变by 宾 把下列句子变成被动语态: 1 He sells coke in a small shop. 2 He wrote the letter last night. 3 We connected the keyboard to the computer. Coke is sold in a small shop. The letter was written by him last night. The keyboard was connected to the computer. 不及物动词没有被动语态，但后面加上介词或副词后，就变成了及物的短语动词，就可以变为被动语态，不过要特别注意短语动词中的介词或副词绝对不能丢失。 Tip: 含动词词组的被动语态，须将其看作一个整体, 不可把它们分隔开来。 使用被动语态注意点 1. 介词 1. They take good care of the baby. 2. We should speak to old people politely. 3. He threw away the box. The baby is taken